BoundingBox vs Create Box, incorrect results from BoundingBox
BoundingBox vs Create Box, incorrect results from BoundingBox
(OP)
We have implemented and successfully been using the journal from:
thread561-389240: AskBoundingBox Function
to run BOM finished sizes for our components for about a year now. Works perfectly 95% of the time. However there are certain instances where it was failed us, and they are seemingly repeatable. We have found that chamfering edges on 'broken out' holes/cutouts on a relatively thin plate causes the plate thickness to be called out as thicker than actual model (eg. a 1.00" plate with a cutout with a chamfer will display as 1.014" and this will change as the chamfer size changes, and then be exact when the chamfer is suppressed). I'll attach a picture. This is not the only feature that has caused an error, but the most prevalent and known off the top of my head.
1) Is there a fix or known reason for this?
2) Why does this BoundingBox function work differently than the CreateBox function? When we manually do a Create Box then measure it, it is always exact???
Any ideas? Like I said 95% of the time it works great and has still solved many issues and saved us a lot of time, but never hurts to try to improve something to 100% right?

thread561-389240: AskBoundingBox Function
to run BOM finished sizes for our components for about a year now. Works perfectly 95% of the time. However there are certain instances where it was failed us, and they are seemingly repeatable. We have found that chamfering edges on 'broken out' holes/cutouts on a relatively thin plate causes the plate thickness to be called out as thicker than actual model (eg. a 1.00" plate with a cutout with a chamfer will display as 1.014" and this will change as the chamfer size changes, and then be exact when the chamfer is suppressed). I'll attach a picture. This is not the only feature that has caused an error, but the most prevalent and known off the top of my head.
1) Is there a fix or known reason for this?
2) Why does this BoundingBox function work differently than the CreateBox function? When we manually do a Create Box then measure it, it is always exact???
Any ideas? Like I said 95% of the time it works great and has still solved many issues and saved us a lot of time, but never hurts to try to improve something to 100% right?






RE: BoundingBox vs Create Box, incorrect results from BoundingBox
There is a more accurate version available, called .AskBoundingBoxExact, that you might want to investigate.
www.nxjournaling.com
RE: BoundingBox vs Create Box, incorrect results from BoundingBox
As always thanks!
RE: BoundingBox vs Create Box, incorrect results from BoundingBox
To compliment the thread, sometimes NX uses facets to calculate things ( Like internal volume around other solid bodies ), i would guess that the imprecise box you get with you code is calculated that way.
- and thereby the other .AskBoundingBoxExact function.
Regards, Tomas
RE: BoundingBox vs Create Box, incorrect results from BoundingBox
Thanks again